Whether it is on your watch, your sun glasses or spectacles there are tiny screws everywhere and there is nothing more irritating than a loose screw - except not having a screwdriver that fits the screw - well for all those little screws we have the SR 5 piece precision flat blade screwdriver set. This set of screwdrivers feature non-slip knurled 3" (7.5cm) stainless steel jeweler's handles (the top of the handle freely rotates or spins) so that the screw can be manipulated by the opposite movement of the thumb and forefinger on the stem of the driver with pressure applied by the palm of the hand, which makes dealing with small screws effortless. Every set comprises of 5 color coded handles with five tempered steel blades of size 0.80 mm, 1.00mm, 1.20mm, 1.40mm, 1.60mm; a spare set of blades is included should one of the original blades becomes damaged.